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- Newsgroups: comp.os.msdos.programmer
- Path: sparky!uunet!news.univie.ac.at!email!eaeps1.tuwien.ac.at!riedling
- From: riedling@eaeps1.tuwien.ac.at (Karl)
- Subject: Re: COM3/4 problem.
- Message-ID: <riedling.22@eaeps1.tuwien.ac.at>
- Sender: news@email.tuwien.ac.at
- Nntp-Posting-Host: pc68.iaee.tuwien.ac.at
- Organization: Inst. for General Electrics & Electronics, TU Vienna
- References: <0095E0C5.50EBD660@FHYDRA.FYSEL.UNIT.NO> <1992Jul26.210238.21921@mksol.dseg.ti.com> <n7ggp0tw6@tmsoft> <nate.409@psygate.psych.indiana.edu>,<1992Aug05.222138.1707@chshost.in-berlin.de> <0095EBBC.51676F80@FHYDRA.FYSEL.UNIT.NO>
- Date: Fri, 14 Aug 1992 14:55:20 GMT
- Lines: 25
-
- In article <0095EBBC.51676F80@FHYDRA.FYSEL.UNIT.NO> dahls@fhydra.dnet.unit.no (Joern Yngve Dahl-Stamnes) writes:
-
- >When is the IRQ required on a printer port. I have read that the DOS
- >command 'print' need IRQ. What about windows. Does the print manager
- >need IRQ? Or could I just remove my IRQ's from the LPTn ports and
- >use them for my COM3 and COM4?
-
- I know about only one place where you DO need an active IRQ on a printer
- port, namely, on a print server (or on a system running the RPRINTER
- program) under Novell's Netware 3.1. You may get along without hardware
- interrupts on a dedicated print server, but you definitely need them in
- conjunction with RPRINTER. (By the way, one of the major troubles there is
- that it is extremely difficult nowadays to get a printer card which (a)
- allows to enable/disable the hardware interrupt altogether, and (b) permits
- to select any other interrupt than IRQ7 (unless by using crude force and
- a soldering iron). Therefore, you may have two printer cards in one system
- which work fine under DOS but which you hardly can get to work under
- Netware. -:()
-
- +-----------------------------------------------------------------------+
- | Dr. Karl Riedling | Email: riedling@eaeps1.tuwien.ac.at |
- | Associate Professor | |
- | Vienna University of Technology | Phone: +43-1-58801-3846 |
- | A-1040 Vienna, Austria, Europe | Fax: +43-1-5052666 |
- +-----------------------------------------------------------------------+
-